Which sentence below is an example of good business writing in standard English？

A、Ortega’s memo stated in no uncertain terms that all employees need to arrive for work on time every day.

B、Although there are many challenges in today’s market and stock values have dropped considerably since last year, but we can hope to benefit from strategic thinking and careful decision making.
C、Children benefit from getting enough sleep, eating a balanced diet, and playing outdoor.
D、At any given point in time, well, there is a possibility that we could, like, be called upon for help.